[Mailsec] CLIENTID and ESMTP and LMTP Transmission Types Registration
Andrew C Aitchison <andrew@aitchison.me.uk> Mon, 27 March 2023 17:10 UTC
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Date: Mon, 27 Mar 2023 18:10:38 +0100
From: Andrew C Aitchison <andrew@aitchison.me.uk>
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Subject: [Mailsec] CLIENTID and ESMTP and LMTP Transmission Types Registration
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[ I am attempting to implement CLIENTID for Exim the MTA. ] https://www.rfc-editor.org/rfc/rfc3848 added ESMTPA, ESMTPS, ESMTPSA, LMTP, LMTPA, LMTPS and LMTPSA to SMTP and ESMTP for use in the "with" clause of a Received header in an Internet message. Would we want CLIENTID to add to this list ? My thought is that this would risk leaking information which might allow a third party to infer facts about the heuristics or rules used, so my guess is "no". If we *did* decide to add to this list, would ESMTPSC and ESMTPSCA be sufficient, or do we want LMTPSC and LMTPSCA too ? Thanks, -- Andrew C. Aitchison Kendal, UK andrew@aitchison.me.uk
- [Mailsec] CLIENTID and ESMTP and LMTP Transmissio… Andrew C Aitchison
- Re: [Mailsec] CLIENTID and ESMTP and LMTP Transmi… Michael Peddemors
- Re: [Mailsec] CLIENTID and ESMTP and LMTP Transmi… Andrew C Aitchison
- Re: [Mailsec] CLIENTID and ESMTP and LMTP Transmi… Andrew C Aitchison
- Re: [Mailsec] CLIENTID and ESMTP and LMTP Transmi… Michael Peddemors